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 function add(x, y) {

     if (x & 0x1)

         return x + y;

     else

         return y + x;

 }

 function runBinop(binop, lhs, rhs) {

     return binop(lhs, rhs);

 }

 //dis(run_binop);

 // Get the add function to compile.

 var accum = 0;

 for (var i = 0; i < 1000; ++i)

     accum += add(1, 1);

 assertEq(accum, 2000);

 // Get the runBinop function to compile and inline the add function.

 var accum = 0;

 for (var i = 0; i < 11000; ++i)

     accum = runBinop(add, i, i);

 assertEq(accum, 21998);

 var t30 = 1 << 30;

 var t31 = t30 + t30;

 var result = runBinop(add, t31, t31);

 assertEq(result, Math.pow(2, 32));